/**
* Set metadata
*
* @param mixed $key Data key
* @param mixed $value Data value
*
* @return $this
*/
public function setMetadata($key, $value)
{
$data = $this->metadata->getValue();
$metadata = $this->encoder->decode($data);
$metadata[$key] = $value;
$data = $this->encoder->encode($metadata);
$this->metadata->setValue($data);
return $this;
}
/**
* {@inheritdoc}
*/
public function setValue($value)
{
if ($value === null) {
$value = array();
} elseif (!Value::isArray($value)) {
throw new InvalidArgumentException(sprintf("Field set value has invalid type: '%s'", gettype($value)));
}
return parent::setValue($value);
}